C. You'd be starting at a higher floor (positive number) and descending floors (negative number per x). If you assume x is time it's a little more logical and visual.
An equation in standard form looks like Ax + By = C.
Let C = 80
Take it from here.
Answer:
no its not right
the line doesn't pass by (2,0) it passes by (2,1)
Answer:
-13
Step-by-step explanation:
x+4=-9
-4 -4
x= -13
If you did 9+4 you'd get 13. But instead its negative because x is negative.